Ice-cream freezer.



PATENTED .T ULY 9,1907. J. GERNER. 10E CREAM EEEEZEE.

APPLICATION FILED JULY 2, 1904.

JIIJI UNITED STATES PATENT OFFIC HENRY J. GERNEB, OF VANDERGRIIFT, PENNSYLVANIA, ASSIGNOR T MARY GERNER, OF

- CANTON, OHIO.

To all whom it may concern:

Be it known that I, HENRY .T. GERNER, a citizen of the i United States of America, residing at Vandergrift, in

the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Ice-Cream Freezers, of which the following is a specification, reference being bad therein to the accompanying drawing.

'- This invention relates to certain new and useful improvements in ice cream freezers, and more particu larly to a continuousice cream freezer of the type shown and described in Letters Patent of the United States granted to me January 12th, 1903, N 0. 749,286.

. had to the drawing accompanying this application,

wherein like numerals of reference indicate like parts throughoutthe several views in which" Figure 1 is a side elevation of a machine of the type set forth in my-prior application, showing my improvements thereon, Fig. 2 is a vertical sectional view of a portion of the freezing tub, and Fig. 3 is a vertical sectional view of a portion of the reservoir.

My present improvement, as heretofore stated, re-

sides in the provision of novel means in connection with the freezer whereby the consistency of the cream may be governed to produce a finer or lower grade of cream as may be desired, and also n'ovel means in connection with the freezer to determine with what rapidity the cream is being frozen and just what quantity of cream has been frozen. I

. In order to familiarize those not conversant with the general construction and operation of my improved freezer, a brief description will now 'be given in order that my present improvement will be readily understood and the advantages of the same appreciated.

The freezer consists of a frame work 1 upon which is pivotally mounted a tilting table 2 and upon one end of this table is mounted the freezing agent tub 3 in which is located the freezing can in which the cream is to be frozen. Upon the other end of the tilting tableis mounted a cream reservoir 4 from which cream is fed through a valve 5, a p pe 6 to the freezer can pipe 7, and by the location of this reservoir it will be observed that cream is continually fed to the freezing can when the valve 5 is open. In my improved freezer I have provided means for revolving the dasher within the Specification of Letters Patent. Applioationfiled July 2,1904. Serial Ito-215,057..

ICE-CREAM FREEZER.

Patented July 9, 1907.

freezing can in an opposite direction from that in which the freezing can isrotated, this means consisting of a sprocket wheel 8 mounted on the sleeve 9 of the can and over which passes a chain 10, a rotary motion being imparted to the can by .the chain which also passes over the main operating shaft mounted in the frame of the machine. The dasher shaft is reversibly geared to the main operating shaft through the medium of sprocket chain 11 and sprocket wheel 12 mounted on the pipe 7-. In connection with the reservoir 4 l mount an agitator therein which isrotated by a sprocket wheel 14 and chain 15 that is operatedfrom the pipe 7 of the freezer.

The tilting table is employed to incline the freezer can at any desired angle in order to retain the cream at the'rear end of the can in the event of the cream freezing' slowly 'or to elevate the rear end of the can and .incline the forward end of the same to more rapidly discharge the frozencream and to accomplish this a shaft 17 is journaled in the frame of the freezer and is provided on its one end with a .suitable operating wheel 18. The shaft 17 carries a beveledpinion 17 which meshes with a beveled pinion 18 carried on the vertical screw 19 which passes through the table of the machine. It will thus be seen that when the wheel 18' is rotated the screw 19 will be revolved and the one end of the table raised or lowered as desired.

My present invention resides, in combination with the construction just described, in an indicating pointer 20 which is secured by any desired means to the edge of the tilting table and upon the frame work 1 I secure an arc shaped scale 21, this scale being graduated as indicated at 22, the graduation representing the degrees of the are which the tilting table will describe vyhen raised or lowered by revolving the wheel 18 The indicating pointer 20 is adapted to overlie the arc shaped scale whereby the angle of the inclination of the table may be determined by examining the graduations of the scale, and to further facilitate this observation I place upon the scale a mark 23 which will determine the normal or horizontal position of the tilting table.

formed vertically within the side wall of the reservoir 4 and over this slot' is placed a glass plate 25, the plate being secured to the side of the reservoir by a plate 26, this plate being graduated as indicated at 27 upon each side of. the slot whereby the quantity or amount of cream within the reservoir may be readily determined also the amount of cream which'is being frozen in a prescribed time.

The reference numerals 28, 28 indicate mercury tubes which are arranged upon the side of the freezing The reference numeral 24 indicates a slot which isagent tub, and as illustratedin Fig. 2.of.the drawing,.

where a vertical sectionali view of a portion ofitlie tub' upon which the mercury tube is mounted, is shown The mercury. tube issupported in a. receptacle 29 formedi'ntegralwith the side of the freezing can. (see Fig. 2) and in order that observations may be made from the mercury tube, I have formed in the slats 30- slots 31 over which a plate 32 isplaced this plate being graduated as indicated at 33, these graduations corresponding to the degrees of'temperature of 'a thermometer and by employing the mercury tuhe it will be readily seen that the temperature of the freezing agent within the tub=and: the/temperature ottherainwhicha surrounds-the tub may. be determinedby examining the thermometer carried thereby.

The reference. numeral 34 designates a partition: which: is placed in the freezing; agent tub preferably near the rear end of: the tub-the partition: beingcut awayto permit the freezing. cana 35to=revolve within. the tub; This partition '34-. forms-two compammenw 36 and 37. the compartment 36. being. larger than-.the

compartment 37- andin the forward: end of the-tuh- 11 secure aninlet pipe 38-and-in' the side of-the tub-pref,

erably near the topI secure an outlet pipe -39=which:

extends downwardly and leads to a suitable receptacle as will be hereinaftenmore fully described In-the end 0f.the tub I. secure anzoutlet-pipe 40 and:

this-pipe connects by'apipe 41 with-the pipe 39'and upon said: pipe I locate a valve 42. and between the connection 43 of the pipe 41 withthe-pipe 39 and the:

outlet oiithe pipe 391 locate avalve 44.

- In'freezing or cooling a fluidsuch as cream :on the like.

. ablly employ. ice and salt or. brine andzthe use-of these freezing agents will be nowdescribed; When-ice-and: salt are employed the ice is placed-inrthe compartment 36 ofthe tub and I thoroughly mix this ice withisaltg. this combination of freezing ingredients maintaining.- a low degree of temperature-within. thecompartment 36 which. can be observed hom-the thermometer carried upon. the side of the tub-opposite thiscompartrthat it is essentialthat whenxthe cream-isfirst admitted: tothe; freezing tub that the process of freezing: the same be carried: on. at a.comparativelyhighdegree of: temperatureto permit the creani to congeal andzto obs tain-the best. results therefrom. It-i'stherefore necessary that: the: temperature im thecompartment 37- should be higher thanthe temperature inathecompartiment. 36.-owing tothe factthat the creamzin my 11m i provedireezenis admitted'to the-end-oithe canwhieh: fh n ntany arranged; my; -fl a] partition :ranged in saidtub and dividing thetub into compartments, saidpartition beingformed with openings for-the v t th the Ice and salt I] flow re ardly Into thecom v passage of a freezing agent from one compartmen to c ment' 37, the-partition=34 not. fittingthe walls of: the

tub sufiioientlyto prevent: the seepage of the brine.

. therethrough: and uponrthe-brinereaching' the. compartmenh 37,]the cream whihisadmittedpimthe-end: of-the freezer willbe slowly. and gradually frozenxuntilasufficient: quantity of: cream has entered: the can: te-

cause the same to move forward into thatrpart'ofithe (an; i

which lies=in the-compartment..36,- andas the ioeand. salt in this compartment maintains a low d: of: temperature; the cream will berthoroughly'frozenand emitted'from the discharge tube oiithe freezing cam In. event of the brine formed by the ice and salt. within: the compartments 36 and 37 having reached such a stage as to overflow, the same will pass out through the outletpipes 39and40 andbe dischargedfromthe pipe 39 into a suitable brine receptacle (not shown). When it is desired to remove the brine from the freezing agent tub, the table 2 is tilted to permit the same. to flow to the forward end of the tub and be discharged through the pipe 38, a suitable valve (not sliown).may be employed in connection with this pipe 'to prevent the-brine which may accumulate within the compartment 36 from being discharged therefrom during the process of freezing the-cream. Should: the bri'newithinthe compartment 36 reach such a-height as to overflow without passing by the partition 34, the valve beclosedwhichwould retain the brine within' the compartment-36 and-force thesame by'the partition into the'compartment- 37-, where-if it shouldreach such a height asto overflowit could pass-through! the outlet pipe 40, through pipe 41, into the pipe 39. from where it-could be discharged into a suitable'receptacle.

Where-it is desired to=freeze the fluid or creamby the use of brine, it is forced through the pipe 38 into the compartment 36 and then into the compartment 37 and-should'thesame reach'suoh a height as-to overflowit will be-conveyed from the freezing agent tub theapplication: ofice and salt as a freezing agent.

By employing the graduated scale upon-the reservoi r and-the-means-for determining the inclination of the tilting table, I have 'provideda novel manner of deten miningthe'rapidityat which the creamshould be fed-- through thefreez'ingrcancarried within the-tuband'byobs'erving the thermometer and determining the tem perature of the freezing agent within-the tub, the personoperating the freezing machinewill, by experi- .-ment*, be able to determine atjust'what angle the table should be ihclined-inwrden'that thecream within the reservpir' will flow: into and-throughthe freezing can to ;produce a frozen cream-of afi'ne consistency.

ment. It' is a well=known.fact that infreezringcream;

'It has al'sobeen' found' by experiment that" whentlie .creamis rapidly-fed-through'the freezer that the con sist'ency'of'the-same is ofa-ooarse nature and thatby. newly. feeding the cream-though the-freezer, permit- ..tingthe slowvfreezing'processofthe same, the consistenoy of'the oreamis-of a-fine and-smoothnature which ie desirable for commercial purposes.

What I claim is: v 1'. In a freezing machine, the combination with the other, of'a freezing can supported within the tub on a horizontal axis, and extending into the tub on bothsides of said partition.

2. In a freezing-machined the character set forth, the combination with a tilting table, the tub mounted on said table a freezing can arranged in said'tub, a cream reservoit-mountedon'said=table andcommunicating with said can, means for supply-lugs. freezing agent to said tub and withdrawing the same-therefrom,- of. means ton regulating the supplying. of. cream to the can and means for regulating the passage of the freezing agent through the tub whereby" the rapidity atwhich the cream isfrozen maybe govermd'. 34.1mm freezinggmachinena tub, said tub havingtwo compartments formed therein, inlet and outlet ports formed in one compartment, the other of said compartments having an outlet port formed therein and communieating. with the first named outlet port, and means for confreezing agent into one of said compartments, and means for leading the freezing agent from the compartment in which it is first placed into the other of said compartments. a I

5. In a freezing'machine, the combination of a tub, a tilting table on which said tub is mounted, a freezing can arranged within the tub, a vertical partition disposed within the tub and dividing the same into two compartments, said partition having ports or passageways whereby a fluid can pass from one compartment of the tub to theother and means for tilting s aidtable to efiect the flow of liquid from one compartment to the other.

6. In a freezing machine, the combination with a tub adapted to receive a freezing-agent, of a vertical partition within'the tub and separating the chamber therein into compartments, and. a freezing can extending through said partition into the diiferent compartments in the tub.

7. In a freezing machine, a horizontally disposed tub adapted to receive a freezing-agent and divided by a vertical partition into compartments, and a freezing can extending into all of said compartments. I

In testimony whereof I aifix my signature in the presence of two witnesses.

HENRY .T. GERNER. Witnesses C. C. MCMAHON, JOHN Pa'rmnsoni 

